| He created mouse embryos with DNA lacking in CDX2, the gene responsible for forming the trophectoderm, or skin on a blastocyte, which is the early form of an embryo. |
| In the mammalian embryo, for instance, the first compaction of the blastomeres is under the influence of E-cadherin to produce the trophectoderm. |
| At the blastocyst stage, the onset of mtDNA replication is specific to the cells of the trophectoderm. |
| The blastocyst cell numbers, inner cell mass, trophectoderm and total cells, had been influenced neither by the type of IVM medium nor by the type of serum supplements. |
| The cells lying between the primitive endoderm and the polar trophectoderm comprise the embryonic ectoderm or epiblast. |
